Swagelok SS-56S6 is a stainless steel lift check valve featuring a 0.64 Cv maximum flow coefficient and 3/8 in. Swagelok tube fitting connections. Swagelok lift check valves feature a unique bonnet design that enables the use of gravity to limit reverse flow under pressures up to 6000 psig (413 bar) and temperatures up to 900°F (482°C).

Specifications	Value
Body Material	316 Stainless Steel
Cleaning Process	Standard Cleaning and Packaging (SC-10)
Connection 1 Size	3/8 in.
Connection 1 Type	Swagelok® Tube Fitting
Connection 2 Size	3/8 in.
Connection 2 Type	Swagelok® Tube Fitting
CV Maximum	0.64
Room Temperature Pressure Rating	6000 PSIG @ 100°F / 413 BAR @ 37℃
Surface Finish	Standard
Testing	No Optional Testing
eClass (4.1)	37010801
eClass (5.1.4)	27300400
eClass (6.0)	27292001
eClass (6.1)	27292001
eClass (10.1)	27292001
UNSPSC (4.03)	40141622
UNSPSC (10.0)	40141634
UNSPSC (11.0501)	40141634
UNSPSC (13.0601)	40141634
UNSPSC (15.1)	40141659
UNSPSC (17.1001)	40183101

Safety and Intermix Warning

The complete catalog contents must be reviewed to ensure that the system designer and user make a safe product selection. When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user.

Do not mix/interchange Swagelok products or components not governed by industrial design standards, including Swagelok tube fitting end connections, with those of other manufacturers.